Kinetic and Microstructural Studies on the Devitrification of Fe60-xCo18MnxNb6B16 Amorphous Alloys
Kinetic and microstructural studies have been performed on Fe60-xCo18MnxNb6B16 (x = 0, 2, 4) alloys by using different techniques. Isothermal and non-isothermal kinetics agree describing the nanocrystallization as a strongly impinged growth process. Developed microstructure is similar for all the st...
| Autores: | , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2008 |
| País: | España |
| Institución: | Universidad de Sevilla (US) |
| Repositorio: | idUS. Depósito de Investigación de la Universidad de Sevilla |
| OAI Identifier: | oai:idus.us.es:11441/146896 |
| Acceso en línea: | https://hdl.handle.net/11441/146896 https://doi.org/10.1016/j.jallcom.2006.12.082 |
| Access Level: | acceso abierto |
| Palabra clave: | Kinetics Microstructure Mössbauer spectroscopy Nanostructured materials |
| Sumario: | Kinetic and microstructural studies have been performed on Fe60-xCo18MnxNb6B16 (x = 0, 2, 4) alloys by using different techniques. Isothermal and non-isothermal kinetics agree describing the nanocrystallization as a strongly impinged growth process. Developed microstructure is similar for all the studied alloys. Nanocrystals are irregularly shaped, ∼20 nm in size, and formed by agglomerates of smaller and more regular units of ∼5 nm diameter. From the present data it is not possible to exclude the presence of Mn atoms inside the crystals. However, a preferential partition of this element into the residual amorphous matrix is clearly derived from Mössbauer results. |
|---|